Question

How can you tell if a division problem as a remainder without dividing

Answer 1

-- Take the number to be divided.

-- Find all of its factors.

-- If you divide it by one of its factors, then there will be no remainder.

-- If you divide it by any other number, then there will be a remainder.

Answer 2

If there's factors there is no remainders but if there no factors is then is has to have a remainder its like the opposite